Spring MVC学习笔记 01
applicationcontext.xml的配置
<?xml version="1.0" encoding="UTF-8" ?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"> <!-- 扫描类包,将标注Spring注解的类自动转化Bean,同时完成Bean的注入 持久层和业务层--> <context:component-scan base-package=".dao"/> <context:component-scan base-package=".service"/> <!-- 配置数据源 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" p:driverClassName="com.mysql.jdbc.Driver" p:url="jdbc:mysql://localhost:3306/sampledb" p:username="root" p:password="1234" /> <!-- 配置Jdbc模板 --> <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate" p:dataSource-ref="dataSource" /> </beans>
web.xml的配置
<!--ContextLoaderListener是一个ServletContextListener ,它通过contextConfigLocation参数所指定的Spring配置文件启动“业务层”的Spring容器-->
<context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <!-- 所有带*.html后缀的HTTP请求都会被DispatcherServlet截获并处理-> <servlet> <servlet-name>a</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <load-on-startup>3</load-on-startup> </servlet> <servlet-mapping> <servlet-name>a</servlet-name> <url-pattern>*.html</url-pattern> </servlet-mapping>
注意:一个web.xml可以配置多个DispatcherServlet,通过其<servlet-mapping>的配置,让每个DispatcherServlet处理不同的请求。
a-servlet.xml的配置
<!-- 让包下标注了Spring注解的类生效 展现层(控制类)--> <context:component-scan base-package=""/> <!-- 配置视图解析器,将ModelAndView及字符串解析为具体的页面 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:viewClass="org.springframework.web.servlet.view.JstlView" p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />